CN101149143A - LED energy-saving lamp panel and its drive circuit - Google Patents
LED energy-saving lamp panel and its drive circuit Download PDFInfo
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- CN101149143A CN101149143A CNA200710166150XA CN200710166150A CN101149143A CN 101149143 A CN101149143 A CN 101149143A CN A200710166150X A CNA200710166150X A CN A200710166150XA CN 200710166150 A CN200710166150 A CN 200710166150A CN 101149143 A CN101149143 A CN 101149143A
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- led
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- lamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
This invention discloses a LED energy conserving lamp panel. It includes a plate shaped lamp panel body. The body includes a base plate, plate wall surrounding the base plate, reflective grilling aluminium covering the base plate, at least one metal light band plate and metal lamp support plate. Each light band has several LED and lens. The said metal light band plate is arranged at inferior end of the metal lamp support plate and contacts it. The said metal lamp support plate is arranged at the inferior end surface of the body base plate. This invention also discloses the driving circuit using the said lamp panel. It is arranged inside of the body. This invention solves the heat dispersion question of high power LED. The driving circuit uses constant current driving mode, which increases the illuminating efficiency and life span. This LED light source can be used to indoor lighting.
Description
Technical field
The present invention relates to the LED light fixture, especially a kind of LED energy-saving lamp panel and drive circuit thereof that is provided with radiator structure and reasonable luminous intensity distribution.
Background technology
Fluorescent lamp of the prior art belongs to gas-discharge lamp, claims hot cathode low pressure fluorescent-mercury lamp again, and it has replaced incandescent lamp to become second generation main flow lighting source.Along with the development of solid state lighting, the LED illumination that integrates multiple advantage just progressively strides forward to third generation new type light source at present.LED has changed the luminous and luminous principle of fluorescent lamp tricolor powder of incandescent lamp tungsten filament, utilizes electroluminescence.Have that light efficiency height, radiationless, life-span are long, the advantage of low-power consumption and environmental protection.
The spectrum of LED almost all concentrates on visible light frequency band, and luminous efficiency is up to more than 90%, near the limit of electric light conversion; Light quality height, essentially no radiation, harmful substance such as not mercurous is also handled behind the life termination easily, belongs to typical environmental protection lighting source; Life-span has reached more than 100,000 hours especially, and reliability and durability, maintenance cost is low.Though great power LED has had so many advantage, but because unit cost is than higher, radiating effect is bad to cause the LED life-span short, and institute is luminous for the spot light shape is unfavorable for the unfavorable factors such as brightness uniformity that realization face is luminous, makes it also not obtain universal use at present in general lighting.
The fluorescence lamp panel of prior art is at present to install the most common of three tubes, its general driver that adopts inductance, electronics, usefulness lamp quantity is many and power ratio is bigger, and whole power consumption is bigger, and it all is not provided with corresponding radiator structure, thereby can not be directly used in the LED fluorescent tube is installed.
Led light source needs the special driving circuit to ensure its operate as normal usually.Because every watt of cost very high (at present generally at ten to 20 yuan/watt) of great power LED, so when driving a great power LED more than 3 watts, it is high many that the cost that the cost of light source drives is relatively wanted, therefore carrying out drive circuit seems quite important.The a lot of high-power LED drive circuits in market all adopt the type of drive of constant voltage at present, the shortcoming of this mode is exactly the electric current variation along with circuit, the brightness meeting of LED is bright inconsistent, also can make whole electric current become big because of the damage of LED group certain LED of the inside simultaneously, cause the whole LED group to be damaged and the lost of life easily, thereby this drive circuit is badly in need of improvement.
Summary of the invention
At lamp panel of the prior art and the existing above-mentioned deficiency of drive circuit, the objective of the invention is to, a kind of energy-saving LED lamp panel that is provided with radiator structure and reasonable luminous intensity distribution is provided, make its fluorescent tube that can directly install and use great power LED, and can solve its heat dissipation problem preferably and realize uniformly light-emitting.；
The present invention also aims to, a kind of drive circuit that is used for aforementioned energy-saving LED lamp panel, is provided with constant-current circuit is provided.
For achieving the above object, technical scheme provided by the present invention is:
A kind of LED energy-saving lamp panel, it comprises a plate-like lamp panel body, and this body comprises a chassis and is trapped among Pan Bi around this chassis, and it also comprises at least one metal light belt plate and metalized lamp seat board, and wherein each light belt plate is provided with some LED; Described metal light belt plate is arranged on the lower end of metalized lamp seat board and is in contact with it, and described metalized lamp seat board is arranged on the lower surface on described body chassis.
It also comprises a led driver, and it is arranged in the described body; Its input connects civil power, and output connects LED.
On the described light belt plate, also be provided with some lens; Described lens are concavees lens or convex lens; Described LED promptly is arranged in the described lens.
On the described light belt plate, also be provided with some cup-shaped lamp sockets, its opening part is provided with lens; Described lens are concavees lens or convex lens; Described LED promptly is arranged in the described lamp socket.
Described metal light belt plate and metalized lamp seat board adopt tenon groove structure to link together.
Also be provided with some plate-shape metal reflector lourve aluminium in the described body, this reflector lourve aluminium is splayed and is separately positioned on described metalized lamp seat board both sides, and snaps together with described body; Also be provided with reflector layer on the described grid surface.
A kind of drive circuit that is used for the described LED energy-saving lamp panel of claim 1 is characterized in that: it is arranged in the described driver, and it comprises an AC/DC power module, and this module comprises rectification circuit, isolation transforming circuit, the constant-current circuit of serial connection successively; The mains ac power supply connects the input of rectification circuit, and the output of constant-current circuit connects the LED group.
Described constant current output circuit is formed by connecting by a comparator and a current amplification circuit.
Also be provided with common mode electromagnetic compatibility circuit between described ac power input end and the rectification circuit; Also be provided with circuit of power factor correction between described rectification circuit and the isolation transforming circuit.
Described LED is welded on the described metal light belt plate, and its electrode is to be connected in series the back successively to constitute the lamp group, and its two ends are connected the output of described led drive circuit again; Output at this led drive circuit parallel with one another between a plurality of lamp groups.
LED energy-saving lamp panel provided by the invention, the design of its appearance and size can with common lamp panel specification basically identical, and the degree of depth of this lamp panel can be shallower than common lamp panel, the position of LED light belt plate is installed in the lamp panel inwardly shrinks, so both saved consumption to the lamp panel metal material, strengthened the irradiated area of LED again, luminous energy is fully used, and also become light, easy has been installed the space shade.
The invention has the advantages that: because LED of the present invention combines closely by the mode and the light belt plate of welding, the light belt plate is embedded on the whole pencil-shape lamp seat board by the chase mortise structure, again the whole piece light bed plate is snugly fitted on the chassis of lamp panel, because the chassis is to be closely together with grid, area of dissipation has just expanded on the whole light fixture like this, form all-in-one-piece radiator structure, its area of dissipation is quite big, heat in the time of can in time distributing the work of LED crystal, thereby thoroughly solved the difficult problem of great power LED cooling, also just improved luminous efficiency and the service life of LED greatly.Owing to adopted above-mentioned radiator structure, the present invention can method adopt 1～3W even bigger high-power and high-luminance LED light source, because what the LED lamp adopted is the lateral emitting technology, add the reflective design of rational lens and cup-shaped lamp socket, make the light of LED emission can fully diffuse on the reflector lourve aluminium of body, the reflection action of grid makes that the brightness of LED lamp is able to effectively improve and the full and uniform field of employment that shines, and reaches the illuminating effect of general lighting with fluorescent lamp.By this series technique measure, can reach by more a spot of LED, and realize energy-saving and environmental protection and the purpose that improves lighting quality.
Supporting led drive circuit provided by the invention because it has adopted working method of constant-current circuit and constant current driving, can effectively solve the brightness uniformity and the problem in LED life-span of LED; Can avoid during work because the damage of LED group certain LED of the inside makes the electric current of whole group become big, and then cause the whole LED group to be damaged and the lost of life; And because it has adopted the input and output isolation method, output is that safety (low pressure) is reliable; Adopt the EMC circuit, can effectively suppress electromagnetic interference; Adopt light fixture of the present invention, it is low in energy consumption, and brightness is strong, and power is 16 watts LED lamp, and its brightness of illumination can be equivalent to 80 watts fluorescent lamp; The circuit design of high-power LED driver provided by the invention is reasonable, cheap for manufacturing cost simultaneously; In manufacture process of the present invention, use, avoided the mercury pollution problem of fluorescent lamp, meet environmental protection standard; Its light luminance can be regulated automatically, makes brightness of illumination meet lighting requirement, simultaneously energy savings.
The present invention is further described below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the perspective view of the embodiment of the invention 1;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the perspective view of the embodiment of the invention 2;
Fig. 4 is the structured flowchart of embodiment of the invention led drive circuit;
Fig. 5 is the circuit theory schematic diagram of this Fig. 4.
The specific embodiment
Embodiment 1: referring to Fig. 1, Fig. 2, a kind of LED energy-saving lamp panel, it comprises a plate-like lamp panel body 1, this body comprises a chassis 11 and is trapped among this chassis 11 dish wall 12 all around, it also comprises a metal light belt plate 2 and a metalized lamp seat board 3, and wherein each light belt plate 2 is provided with 1～28 LED (not shown); Described metal light belt plate 2 is arranged on the lower end of metalized lamp seat board 3 and is in contact with it; Described metalized lamp seat board 3 is arranged on the lower surface on described body chassis 11; It also comprises a led driver 5, and it comprises an AC/DC power module, is provided with rectification circuit, transforming circuit and the mu balanced circuit of serial connection successively in this module; Its input connects civil power; This led driver 5 is arranged on the chassis 11 in the described body 1.
Described LED is welded on the described metal light belt plate 2, and its electrode is the output that is connected described led driver 5 after being connected in series successively; In the present embodiment, the LED energy-saving lamp panel comprises three strip metal light belt plates 2, and wherein its electrode of LED that is provided with on each light belt plate 2 is after being connected in series formation lamp group successively, is connected in parallel on the output of led driver 5 again with other lamp groups.On light belt plate 2, also be provided with some cup-shaped lamp sockets 6, its opening part is provided with the concavees lens (not shown); Described LED is arranged in the lamp socket 6.Described metal light belt plate 2 and metalized lamp seat board 3 adopt tenon groove structure to link together.
Referring to Fig. 4, Fig. 5, a kind of drive circuit that is used for aforementioned single-ended replacement type LED electricity-saving lamp, it is arranged in the described driver 5, it comprises ac power input end, EMC circuit, rectification circuit, circuit of power factor correction, isolation transforming circuit, the constant current output circuit of serial connection successively, its input connects civil power, and its output connects LED lamp group.Concrete, provide in the present embodiment to comprise the lamp group of forming by 8 LED respectively, wherein each LED of each lamp group connects successively; The two ends of this lamp group connect the output of described drive circuit; Among other embodiment, many group LED lamp groups also can be set, its output that is connected this drive circuit parallel with one another.Aforesaid LED constant-current drive circuit, it comprises a power module particularly, this module comprises the ac power input end that connects civil power, and the common mode mode EMC circuit that has been linked in sequence successively, a rectification circuit, a circuit of power factor correction, one isolate transforming circuit, a constant current output circuit, and this constant current output circuit connects and connects the lamp group.The LED that adopts in the present embodiment is the LED of 1W 350MA, and its minimum number is for can be 1～28, or more.A lamp group has been shown among Fig. 2.Described constant current output circuit is formed by connecting by a comparator TL431 and a current amplification circuit.Aforesaid circuit of power factor correction comprises a control integrated package and a current-sensing circuit, this control input end, integrated package ground connects the PC817 current-sensing circuit, establishes a FET Q2 between the negative pole end (5 ends among Fig. 2) of the voltage input line circle of its control output end and isolation transforming circuit, the connecting to neutral.Behind induction of PC817 current-sensing circuit and the conducting electric current, the control input end gets electric, and FET Q2 is then opened in the control output end, and FET Q2 controls the conducting of voltage input line circle circuit again.Realize the correction and the power output of input power factor.Aforesaid isolation transforming circuit is a mutual inductor L3, the electric current that it will obtain from the alternating current input cuts off through the transformation of mutual inductor L3, flows to constant current output circuit again, can reduce the influence of fluctuations of the current strength in the circuit, output is realized safe power supply.
In this constant current output circuit, the positive pole of isolating the voltage output end of transforming circuit rectify meet diode D7 after, also be connected to filter circuit (coil L2).The current collection of the back termination triode Q1 of filter circuit
The utmost point, the emitter stage of the negative pole termination triode Q1 of the voltage output end of isolation transforming circuit, the negative pole end of lamp group connects the base stage of triode Q1 through resistance.The colelctor electrode of triode Q1 is just meeting comparator TL431, comparator TL431 negative pole connecting to neutral, and lamp group positive terminal connects comparator TL431 control end through resistance.Comparator TL431 control end is responded to the variation of the electric current of flowing through lamps group in real time, and constant current control, and the electric current of triode Q1 colelctor electrode is in the current range of setting.The electric current of emitter stage output will be in ± 2% fluctuation range like this, and powerful electric current output is provided.
Embodiment 2: referring to Fig. 3, a kind of LED energy-saving lamp panel and drive circuit thereof, its basic structure is identical with embodiment 1, its difference is, also be provided with some plate-shape metal grids 8 in the described lamp panel body 1, this grid 8 is splayed and is separately positioned on described metalized lamp seat board 3 both sides, and snaps together with described body 1; Described grid also is provided with reflector layer on 8 surfaces.Described driver 5 is built in this grid 8.On the described light belt plate 2 the convex lens (not shown) is set directly, does not establish cup-shaped lamp socket 6,, described LED is arranged in the lens and welds with metal light belt plate 2.
Among other embodiment, this LED energy-saving lamp panel also comprises a battery and emergency control circuit, to use (not shown) as the emergency lighting utensil.
What the present invention adopted is LED lateral emitting technology, the light that LED produces, and after refraction such as lamp panel body 1 and other parts 2,3,8 or reflection, directive area to be illuminated territory.
As described in the above embodiment of the present invention, adopt structure same or similar with it, and other LED energy-saving lamp panel and drive circuits thereof of obtaining, all in protection domain of the present invention.
Claims (10)
1. LED energy-saving lamp panel, it comprises a plate-like lamp panel body, this body comprises a chassis and is trapped among Pan Bi around this chassis that it is characterized in that it also comprises at least one metal light belt plate and metalized lamp seat board, wherein each light belt plate is provided with some LED; Described metal light belt plate is arranged on the lower end of metalized lamp seat board and is in contact with it, and described metalized lamp seat board is arranged on the lower surface on described body chassis.
2. LED energy-saving lamp panel according to claim 1 is characterized in that: it also comprises a led driver, and it is arranged in the described body; Its input connects civil power, and output connects LED.
3. LED energy-saving lamp panel according to claim 1 and 2 is characterized in that: on the described light belt plate, also be provided with some lens; Described lens are concavees lens or convex lens; Described LED promptly is arranged in the described lens.
4. LED energy-saving lamp panel according to claim 1 and 2 is characterized in that: on the described light belt plate, also be provided with some cup-shaped lamp sockets, its opening part is provided with lens; Described lens are concavees lens or convex lens; Described LED promptly is arranged in the described lamp socket.
5. LED energy-saving lamp panel according to claim 1 and 2 is characterized in that: described metal light belt plate and metalized lamp seat board, adopt tenon groove structure to link together.
6. LED energy-saving lamp panel according to claim 1 and 2, it is characterized in that: also be provided with some plate-shape metal reflector lourve aluminium in the described body, this reflector lourve aluminium is splayed and is separately positioned on described metalized lamp seat board both sides, and snaps together with described body; Also be provided with reflector layer on the described grid surface.
7. drive circuit that is used for the described LED energy-saving lamp panel of claim 1, it is characterized in that: it is arranged in the described driver, it comprises an AC/DC power module, this module comprise serial connection successively rectification circuit, isolate transforming circuit, constant-current circuit; The mains ac power supply connects the input of rectification circuit, and the output of constant-current circuit connects the LED group.
8. drive circuit according to claim 7 is characterized in that: described constant current output circuit is formed by connecting by a comparator and a current amplification circuit.
9. according to claim 7 or 8 described drive circuits, it is characterized in that: also be provided with common mode electromagnetic compatibility circuit between described ac power input end and the rectification circuit; Also be provided with circuit of power factor correction between described rectification circuit and the isolation transforming circuit.
10. according to claim 7 or 8 described drive circuits, it is characterized in that: described LED is welded on the described metal light belt plate, and its electrode is to be connected in series the back successively to constitute the lamp group, and its two ends are connected the output of described led drive circuit again; Output at this led drive circuit parallel with one another between a plurality of lamp groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710166150XA CN101149143A (en) | 2007-11-12 | 2007-11-12 | LED energy-saving lamp panel and its drive circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710166150XA CN101149143A (en) | 2007-11-12 | 2007-11-12 | LED energy-saving lamp panel and its drive circuit |
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| CN101149143A true CN101149143A (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200710166150XA Pending CN101149143A (en) | 2007-11-12 | 2007-11-12 | LED energy-saving lamp panel and its drive circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105387A1 (en) * | 2009-03-16 | 2010-09-23 | Chin Juichung | Novel led lamp plate-type grid lamp |
| CN101925232A (en) * | 2010-08-12 | 2010-12-22 | 无锡科尔华电子有限公司 | LED street lamp constant current control power supply |
| CN102109119A (en) * | 2011-01-28 | 2011-06-29 | 江苏生日快乐光电科技有限公司 | Half-tube type grille lamp |
| TWI494025B (en) * | 2014-06-10 | 2015-07-21 | Yu Hung Lin | Lighting device for a sheet metal and system having the same |
| CN107830466A (en) * | 2017-11-30 | 2018-03-23 | 成都青岗科技有限公司 | A kind of LED bar graph illuminator |
-
2007
- 2007-11-12 CN CNA200710166150XA patent/CN101149143A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105387A1 (en) * | 2009-03-16 | 2010-09-23 | Chin Juichung | Novel led lamp plate-type grid lamp |
| CN101925232A (en) * | 2010-08-12 | 2010-12-22 | 无锡科尔华电子有限公司 | LED street lamp constant current control power supply |
| CN101925232B (en) * | 2010-08-12 | 2013-04-03 | 无锡科尔华电子有限公司 | LED street lamp constant current control power supply |
| CN102109119A (en) * | 2011-01-28 | 2011-06-29 | 江苏生日快乐光电科技有限公司 | Half-tube type grille lamp |
| TWI494025B (en) * | 2014-06-10 | 2015-07-21 | Yu Hung Lin | Lighting device for a sheet metal and system having the same |
| CN107830466A (en) * | 2017-11-30 | 2018-03-23 | 成都青岗科技有限公司 | A kind of LED bar graph illuminator |
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Open date: 20080326 |